drilling tools pipe coupling 57mm-159mm oilfield tool joint
The drill pipe joints are made of 35 CrMo or 42CrMo carbon steel. The joint of pipe will be upset and tempering treatment, and do the nitriding treatment on surface. in this way, thread gluing,breaking, and cracking are avoided effectively. the joint is more wire-resisting and easy to disassemble.
All thread are machined by precision CNC lathe and shaping tools, It can not only guarantee the tightness of the drill pipe joint thread, but also guarantee the precision and interchangeability of the drill pipe joint.
we also can produce drill pipe joints according to customer request.
1 Before order to be confirmed ,the raw material of pipe body and tool joint should be booked from famous big steel enterprises in China.
2 Raw material's size ,quantity,length,mechanical property are checked by our QC staff and factory own laboratory
3 Before delivery clients could send one QC or point the third party to check the quality such SGS,BV or others. 
Packing
1. Drill pipe joint packed in carton or wooden box.
2. Customized packing is accepted.
Delivery detail: 15days
Our Service
1. We accept small order, MOQ 1pc.
2. Customized order is accept.
3. Fast and best service, professional guidance.
Q: Are you trading company or manufacturer ?
A: We are a professional manufacturer.
Q: How long is your delivery time?
A: Generally it is 10~20 days if the goods are in stock. or it is 20~30 days if the goods are not in stock, it is according to quantity.
Q: Where is your factory located in?
A: Our factory is located in Lu Jiazhuang Industry Zone, JIN ZHOU city, HEBEI province, China.
Q: What methods of payment are accepted?
A: We agree T/T, L/C,One touch.
Q: What about the shipment?
A: Our usual loading port is Xingang port in Tianjin ,main port in north of China. The goods will be packed into bundle as 3*3,4*4 etc,black painting and thread protectors.
Q: do you agree sample order?
A: Yes, we are welcome your sample order to testing our quality.
Q: Does your drill pipe have rust prevention?
A: Yes, every drill pipe will be with the rust prevention by paint or anti-corrosive oil before shipping and its thread surface will be nitrided.
Q: do you have after-sale service and warranty service?
A: Any quality or quantity problem once confirmed, we will be compensate you the same. Any question or problem we will be reply you within 24 hours.
Q: How about your minimum order quantity?
A: At least 10 pieces.Small orders also can accept.
www.wlddrill.cc
Shijiazhuang WeiLiDa Prospecting Machinery Co., Ltd.is a professional manufacturer of drill pipe (R780 G105 S135 E75), mud pump, drilling and other drilling tools, drill pipe connection. Our factory is located in Jinzhou, 50 km away from Shijiazhuang (the capital city of Hebei province). 200 km from the capital Beijing. We have a good export conditions to Tianjin port and Huanghua port, Company covers an area of 20000 square meters, construction area of 40000 square meters. Its total assets is 20 million yuan.
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